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Kisachek [45]
2 years ago
9

For something to combust, it must have ____________.

Chemistry
2 answers:
Wewaii [24]2 years ago
8 0
The answer would be B
docker41 [41]2 years ago
6 0

╰┈➤\: \huge\color{pink}{\bold{Answer}}

For something to combust, it must have <em>Oxygen</em><em> </em>

  • A. Carbon dioxide
  • <u>B. Oxygen</u>
  • C. Water
  • D. Nitrogen

\:  \:  \:

╰┈➤\: \huge\color{pink}{\bold{Explanation}}

  • We don't have to keep lighting a campfire, it just keep burning

  • To summarize, for combustion to occur three things must be present: a fuel to be burned, a source of oxygen, and a source of heat

\:  \:  \:

So choose letter B

\color{pink}──────────────────────────────

\mathfrak \red{ -  \: Cherrrry \: Red}

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mamaluj [8]

Answer:

D

Explanation:

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Given

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now when the sphere is broken down into 8 smaller spheres

S2= 8×4πr'^2

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and solving we get

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therefore, S2=8\times4\pi\frac{r}{2}^2

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hence the correct answer is

. The second run has twice the surface area.

8 0
3 years ago
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<em>X=</em><em> </em><em>0.</em><em>1</em><em>4</em><em>3</em><em> </em><em>g</em>

<em>The </em><em>mass </em><em>is </em><em>0.</em><em>1</em><em>4</em><em>3</em><em> </em><em>g</em>

8 0
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Alchen [17]

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